ABSTRACT
This chapter proposes a simple approach for the calculation of the ionization potential, electronegativity, atomic radius of atoms in terms of their orbital exponents. The prescription is simple and utilizes only the simple Bohr equation with some modifications. The chapter points out that the atomic first ionization energy does not only depend on the principal quantum number but also on the azimuthal quantum number of the orbital on which the electron of interest is present. The formalism is tested through the calculation of the atomic ionization potentials of 118 elements of the Periodic Table. The orbital exponent values for 118 elements of the Periodic Table are computed following the suggestions of Reed. The express periodic behavior and correlation of the most important physicochemical properties of elements suggest that present method of evaluation of the periodic parameters in terms of their orbital exponents’ ionization potential of the atoms is a quite a successful venture.
